Category Archives: Uncategorized
Wood plastic composite materials in our country there are certain bottlenecks in the development
Wood-plastic composites (WPC) based on primary biomass materials as the main raw materials, compounding a certain percentage of the plastic base material, a special treatment process after processing the molding of composite materials. Wood-plastic composite material is divided into two categories, namely structural wood-plastic composite materials and lightweight decorative wood-plastic composite materials. Wood-plastic composite materials are suitable for a wide range almost covers the use of all wood, plastic, steel, aluminum and other similar composites areas, and because it uses environmentally friendly, cost effective, and can be recycled, and thus solve the composite , the timber industry waste resources recycling. Now advocating a low carbon economy environment, the wood-plastic composite materials, recyclable characteristics that make it more and more attention. However, due to some reasons for the restrictions, the Chinese wood-plastic composites industry development is still relatively slow. A mixed picture of the prospects for the development of wood-plastic composite materials.
First, manufacturers of wood plastic composites, but compared to abroad more than ten million tons of wood-plastic composite materials industry cluster, showing a small and scattered. Yi-Chi Chang pointed out, present, China s wood-plastic composites production enterprises are mainly located in the Yangtze River Delta, the Pearl River Delta region, but the concentration is not high, but the lack of large-scale leading enterprises, to form a small number of industrialization, large-scale enterprise, it is difficult to achieve rapid expansion, which greatly limits the development of wood-plastic composite materials industry in China.
Second, the technology lags behind. Yi-Chi Chang pointed out that domestic research divorced from a serious, less exchanges between related R & D institutions and the wood-plastic composite materials enterprises, lack of effective communication, coordination and cooperation, making some of the industrialization of scientific research process is slow. Moreover, the acute shortage of domestic technical personnel in the field of wood-plastic composites almost no technological innovation, on a number of product performance and conditions of use require a higher wood-plastic composite products for large-scale development, China s wood-plastic composites The level of technology lagged far behind the developed countries.
Again, the products of different specifications clutter, lack of appropriate technical standards. Yi-Chi Chang pointed out that currently, the product types and specifications of the wood plastic composite material is more messy, but neither the industry standard in terms of product technology, there is no national standard, the manufacturers of the product quality is no uniform evaluation, allowing companies to improve their own products. quality were not enthusiastic. Moreover, a number of industries outside the organization tries to join the wood-plastic composite formulation of standards, exacerbated by the chaotic status quo of the domestic wood-plastic composite products, very unfavorable to the development of wood-plastic composite materials industry.
In addition, marketing is not in place of industrial development in China s wood plastic composite facing. Yi-Chi Chang pointed out that the wood-plastic composite materials is an emerging technology products, people lower their level of understanding, and current information varied and complex understanding of the information of the wood-plastic composites chaos. At present, wood products in the domestic market has not yet get the promotion of a large area, making the slower growth of wood-plastic composites market is not conducive to the rapid expansion of the domestic wood-plastic composite materials industry.
At present, the global WPC production of over 1.5 million tons. Among these, the North American production topped one million tons, followed by China 200,000 tons, Japan 100,000 tons, and Germany 70,000 tons. Visible wood-plastic composites industry on a global scale or the development of better. Range of applications, wood-plastic composites products in China is broader than the scope of application of the European region, the broader market products, including windows and doors, insulation and finish systems, park benches, gardens, sheds and high-rise buildings to install solar shading panels, etc..
The agency expects an annual growth rate of 30% in the Chinese wood-plastic composite materials market. From now to 2015, is expected to annually will increase to 500 million tonnes. That is to say within the next five years, China s wood-plastic composites product output to grow 25 times. Faced with such a large amount of growth, we can be no doubt that the prospect of Chinese wood-plastic composites industry is bright.
It all stems from the outstanding characteristics of the wood-plastic composites products. WPC extruded profiles for architecture, for example, the finished products look and feel exactly like wood, and wood processing performance, construction and performance. Wood-plastic composite profiles with better resistance to water, corrosion resistance and other functions, and there is no natural wood defects such as cracking, warping, scar end, obvious color difference, compared with the logs. And wood-plastic composite profiles contain a variety of chemical agents, can resist pests. In addition, woodplastic extrusion products, cross-section design is flexible, design decorative decorative structure and a variety of functional structure, while the functional structure of the wood products and decorative structures are often subject to the limitations of processing methods, a lot of decorative effect is difficult to achieve .
At present, China has not been on the product performance and conditions of use requirements of wood-plastic composite products for large-scale development, its own advantage nor reap the full benefits, such as wood-plastic windows, wood sleepers and wood quick room . But at the same time we should also see that some companies have started Qingdao Huasheng hi-tech Development Co., Ltd. developed wood-plastic composite sheet co-extruded polystyrene insulation material, for instance, held in Cologne, Germany in 2009, wood-plastic composites ( The General Assembly of the WPC) awards.
I believe that with the national policy standards and constantly improve the continuous efforts of the practitioners, wood-plastic composites industry, tomorrow will be even more brilliant.
Excellent performance of the non-ferrous metal composite materials
Non-ferrous materials is important in people s production and living material part of everyday appliances, the most by the non-ferrous materials from the aerospace, transportation, machinery manufacturing to the use of important material in the people s production and living part of people from the aerospace, transportation, machinery manufacturing, daily utensils, the most by the non-ferrous materials. Non-ferrous materials play an important role in the work and life of the people, human beings are very familiar with and use of non-ferrous materials. With the rapid development of science and technology have higher requirements for non-ferrous materials, such as high temperature resistance, abrasion resistance, higher strength, non-ferrous materials in some respects and show some limitations. With the development of science and technology, people are clearly aware of the difficult to meet the needs of high-tech and modern production, to improve the mechanical properties of non-ferrous materials, such as increased strength can be complex ways to improve performance of a single material. Here are some examples of the combined treatment of non-ferrous materials, improved material properties. 1, SiC Add SiC, enhanced ZA22 zinc-based alloy ZA22 zinc base alloys to form a zinc-based composite materials, and its strengthening effect is significantly improved. Nano A1203 enhanced copper-based materials, carbon-copper composite materials by adding nano-Al203, the hardness and bending strength of the material significantly improves significantly reduce the amount of wear. 3, the aluminum alloy of aluminum alloy wood composites use in non-ferrous materials most widely used, the largest amount. However, under certain environmental conditions, material properties change. The tests showed that at different temperatures, especially at high temperatures, the strength of the aluminum alloy composite was significantly higher than that of aluminum alloy. 4, the magnesium matrix composite magnesium matrix composites by the magnesium alloy substrate and enhanced phase composition, the magnesium alloy substrate is generally Mg-Al-Zn alloy, Mg-Al-Si alloy, Mg-Al – Mn alloy, Mg-Li alloy and Mg, Al and rare earth alloy. The use of enhanced carbon fiber, silicon carbide, alumina and boron carbide particles. With the research and development of new manufacturing processes, the magnesium matrix composites in the aerospace, automotive, nuclear industry, sports and entertainment as well as other advanced engineering to a wider range of applications. The volume fraction of 30% carbon fiber reinforced magnesium matrix composites (Cp-Mg), the interfacial shear strength of 40MPa, and the interfacial shear strength of magnesium alloy (Mg a 4A1) of 20Mpa or. 5, the Al-Si alloys, graphite composite aluminum-graphite composite is a new composite material developed in the late sixties, the composite material, since the sliding friction coefficient, thermal expansion coefficient, high strength with high the damping properties is an excellent material for the preparation of the internal combustion engine piston, sliding bearings. These examples illustrate that the formation of new metal matrix composites by combined treatment of non-ferrous materials can significantly improve some mechanical characteristics of the material, in order to develop more applications. However, the manufacture of composite wood materials involved in the process is more complex, longer production cycle, high production costs, the need in-depth study of the scientific and technical personnel, process improvements, innovative. Particular focus on the practicality of the research. In the composite design process, according to the need to achieve critical performance to be a major key. In this way, made of composite materials may be other performance decreased, but the key to achieve greater performance, the practical application of the material better.
Development Trend of WPC materials
WPC material originated in North America, commercial production for more than 40 years, has gone through three stages, namely the first stage of production of
ordinary WPC Logistics Pallet-based; mainly the production of landscape construction materials and decoration materials the second stage and third stage of the main
structural components and sets of intensive construction. Industrial development and promotion of the use of cheap or waste resources is a major feature and advantage
of the WPC industry. Broadly speaking, the WPC has actually become a new class of materials with a variety of natural fiber materials or inorganic materials as the
substrate, the composite wood made with a variety of resin materials. Its appearance is very conducive to ease the current shortage of resources, especially the protection
of forest resources.
Initial WPC has been as a species of modified plastics, but with the increasing levels of production technology, its products, with the many advantages of
plastic, wood, metal and other elemental materials, product features gradually apparent has gradually become a self-contained new material. It is a branch of the most
dynamic in the new biomass in the composite family, and gradually formed to fill the polyethylene (PE), polypropylene (PP)-based structured products, and to fill
polyvinyl chloride (PVC foam two branches) as the main decorative products. Industry practices and user needs, the direction of development of the two major categories
of wood products tend to imitation wood products. But due to the strong plasticity of the WPC, WPC industry and related industries provide a wide symbiotic way.
WPC biggest features is that it also has the dual advantages of the basic materials of natural wood and resin material of two different materials, both with
wood texture and performance (it can be sawed, planing, nails, bending and bonding), to overcome the poor stability of timber size, flammable, tide, perishable, easy
to bore the growth of mold and other shortcomings, but also avoid the high temperature creep of pure resin material, low temperature brittle inadequate. For example,
qualified wood materials 48 hours water absorption is generally less than 0.5%, with very good water resistance. Therefore, high-quality wood materials and its
products, especially to adapt to the large temperature difference, the more water wet, poorly ventilated places such as Piazza, toilet, storage room, etc.. According
to another timber expert determination: the average moisture content of wpc wood below 19%, insects can not survive. But mixed with considerable part of the resin
material, and low moisture content wood materials basic medium material and the living environment of the insect, moth performance is also very good.
Wood plastic or the conquest of the future market floor
Re-use of raw materials, waste
With the emphasis on improvement in the level of environmental resources, waste recycling and comprehensive utilization of resources as the core loop model of economic
development has become the trend of world economic development. Vigorously develop the resource recycling technology will be economic development and environmental
sustainability have a profound impact. The use of waste plastic and wood fiber production of wood plastic composite products is in line with the world trend of energy
saving and environmental protection, new building materials.
Wood-plastic meet the people s pursuit of a recycling economy, the promotion of low carbon environmental protection purposes, can be used in the landscape, interior
and exterior decoration, wpc flooring, fence, flower beds, shelters and other places, the useful life of ordinary timber several times, the color can also be adjusted
according to the formula .
Compared with the traditional wood, wood biggest advantage is the environmental contribution, "to save the wood is conducive to protecting the ecological environment,
and do not need to paint to avoid pollution of the environment, recyclable scrap and no secondary pollution." Jufeng company Liu Shuyang, vice president, said the
woodplastic water absorption of less than timber, and acid rain, seawater corrosion, but also anti-moth-eaten, rat-bite, so it is the life of ordinary wood, 3 to 10
times. "
With the increasing tension of the forest resources in China, the world s timber prices increasing all the advantages of wood-plastic composite materials began to be
strong support from the relevant departments of the state.
In 2002, the wood-plastic composites to enter the Chinese Academy of Sciences, 2002, high-tech development report; the same year, was included in the National 863
Project and the State Forestry Administration, 948 plans, and set up a special group; 2001 to 2006, National Development and Reform Commission has been wood-plastic
composites as new materials and special projects of national high-tech industry; be included in the 68 topics of priority to the development of biomass in the State
Department s "outline of the national long-term scientific and technological development" ( associated with wood-plastic) composites, and the five themes of the five
areas.
Application to conquer the Olympic Games, World Expo
In 2010, China s wood-plastic products in China, the Shanghai World Expo a great success. Elevated pedestrian walkways of the Expo site in Pudong, the Expo Axis
Landscape Avenue, the outdoor recreation area of the Crown of the East China Pavilion, the most intensive during the World Expo traffic outdoor areas, unified use of
new environmental protection materials, wood-plastic laying.
Had participated in the Expo area of wood-plastic landscape design and laying tasks Gu Wenbiao said he had used in landscape design materials for the wood
preservative, contain heavy metals and pesticides in the corrosion process, the experience of the surrounding water cause secondary pollution. Various experts
unanimously decided to use wood-plastic alternative to natural wood, especially outdoor pedestrian walkways, floor, flower boxes, tree, pool chairs, etc. with wood
material.
Wood-plastic landscape can be 100% recycle and reuse, after the end of the Expo, part of the wood-plastic landscape park also been ported to other areas and
circulation re-use.
In the Beijing Olympic Games during the preparatory process, BOCOG has decided that the construction of Olympic venues to use wood-plastic materials instead of
wood preservative, the Bird s Nest, Water Cube and other venues now have the energy saving and environmental protection floor. Zheng Jue, general manager of Anhui
Guofeng Wood Plastic Technology Co., Ltd. said, MAK wood-plastic company involved in the production of the Beijing Olympic Park wood-plastic demonstration garden
outdoor flooring, wood houses, garbage cans, fence, wood carvings and other landscape sketch, in which exclusive ownership and 250 × 20 plastic sheet carved plum,
orchid, bamboo, chrysanthemum four relief by the national wind wood-plastic model projects in the most beautiful landscape, with its exquisite carving and vulgarity
creative, the entire wood-plastic the landscaping works BOCOG, live the praise of the officials and experts of the construction department (formerly the Ministry of
Construction).
Future mainstream market
Wood-plastic this new material has many advantages, but at present the major building materials market rarely see such material products. Reason, the Jufeng sales
manager Fang Zhiyong, said: "A promotion is not enough, another important reason is price."
China is a timber resource-poor countries, excessive felling green trees barrier destruction, the dust storm intensified, the Government attached particular importance
to the recycling of resources and protection of ecological environment, the development of wood-plastic products to create very good the environment, coupled with the
excellent performance of wood-plastic products, wood plastic sooner or later will be fully substitute for ordinary wood.
Of course, in order to truly comprehensive alternative in the market out wood products, wood plastic products must first be inexpensive. Per square meter of wood-
plastic flooring on the market today the price of 200 yuan to 300 yuan, higher than the solid wood floor length, this is because the wood-plastic proportion is much
higher than wood from the current point of view, wood to enter the indoor The home improvement industry is still in the early initial stage, we must first change the
process and reduce costs; Also re-established sales channels, marketing, and I want the fastest five-year, no later than 10 years, wood-plastic products is very
promising to fully replace the logs products, because this is a major trend in China has strongly advocated the development of a low carbon economy. "
Wood plastic flooring began to be used on public construction of scenic spots and outdoor
Wood-plastic building materials has begun in the garden area and public facilities to try to use public outdoor facilities in the Green Expo Garden, Beiji Ge Square,
Sun Yat-sen saw looks like the floor of the wood material, or plastic-like park chairs are of such materials. Nanjing lived Construction Committee said that this green
eco-wood materials will be widely used.
Nanjing Forestry University Distinguished Professor Wu Yuan said in an interview with reporters, in fact, a lot of outdoor facilities abroad with a wood-plastic
material, the biggest advantage of this material is moisture, acid, does not rot. wood plastic composite material is plastic raw materials, extrusion, molding,
injection molding, plastic processing, to produce a new type of plate or profiles, compatible with the excellent characteristics of the wood, the production cost is
also lower than wood products. The addition of this new material can be a full recovery and reuse.
Traditional wood has many disadvantages, such as many parts of the wooden facilities used for a long time, the biggest problem is perishable, but recovery is not easy.
Responsible Jiangsu Nanjing, Sun Yat-sen plank road laying a wooden New Materials Co., said the person, outdoor wooden facilities greatest weakness is a long time to
decay as the new woodplastic materials can help to resolve this issue, Nanjing Sun Yat-sen of the trestle on the use of wood-plastic materials, from the current use
of the material is not only beautiful but also anti-corrosive, very durable.
Qingdao Green Wood Bo ecological wood is a high-quality wood-plastic materials, has been widely used in the construction of the Olympic Games and World Expo. Before
the King is bound to lofty wood-plastic with excellent features.
Shenyang step up transformers changing of the guard with Figures
Mr. Lu and other experts in a letter to recommend to protect the power equipment manufacturing industry, thus changing the the Shenyang step-up transformer group of foreign joint venture fate.
With the December 30, 2003 TBEA (600089.SH), a paper announcement, China s oldest step-up transformer enterprise — Shenyang step-up transformer Group — officially fall into the capsule of Xinjiang TBEA in.
Previous full five years, Siemens has been on Shenyang step-up transformer Group (hereinafter referred to as "Shen change") endless love.
Siemens dashed
Shenyang step-up transformer Group was established in 1938, has 65 years of history. The company developed rapidly in the 1960s, known as step-up transformer originator said. Is the birthplace of the step-up transformer industry and product standards makers, is the highest voltage, the maximum capacity of step-up transformer manufacturing base and research center, most of the domestic step-up transformer industry personnel are from Shen change, known as the father of the step-up transformer. "said the former general manager Wang Changxu Shen change.
Wangchang Xu introduced the original Shen change in the 1980s to 1993 glory, profit sixty-seven million in 1995. But in 1997 began to suffer losses in 2001 and 2002, average annual loss of 100 million in 2003, over 100 million, was considered by Shenyang City, as a large state-owned enterprises, one of 20 urgent overall joint venture, ranked first.
Its always been a leader in the domestic and, more importantly, its market is not lost, has been China s Three Gorges Project and the West to east mega-projects, step-up transformer provider.
"Back in 1998, Siemens to negotiate joint venture matters. January 4, 2004, Wang Changxu introduced in 2000, Siemens has sent a dozen experts worked for three years in Shen change.
And two, Siemens issued by the acquisition program.
For the first time in August 2002. Wang Changxu introduction, Shen change and its controlling party of the Shenyang Industrial State-owned asset management company at that time, Siemens submitted the feasibility of joint ventures, acquisition of the assets of 230 million Shen change. Shen change and Shenyang Municipal Government can not accept that the two provisions in the program. First, China s return of 39 long years;, Siemens sent Shen to change the 20 experts, annual per capita wages to two million. China believes that "the wages of 20 experts in the light is necessary each year 40 million, money gave Siemens, the program is not feasible." As a result, the Chinese side proposed to amend the proposal, Siemens has strongly disagreed.
Siemens harsh conditions, negotiations, time-consuming March without fruit.
The original Siemens certain to win, "Siemens Shen change too familiar with that Shen change only to go this way and Siemens, told a reporter, former Shen changes but wanted to talk to grab a Chint.
Stranded negotiations and Siemens Wangchang Xu said, the end of 2002, changed Shen and Private Enterprises in Zhejiang Chint Group approached and signed a framework agreement on December 10, 2002, to 350 million acquisition of fixed assets Shen change, but Shen change 1.5 billion in debt but can not cross.
January 3, 2003, the Supreme Court s judicial interpretation of the provisions of the Supreme People s Court on the hearing and enterprise restructuring-related civil dispute cases a number of issues made it clear that the merger after the companies were absorbed, the original corporate debt borne by the new enterprises. The Chint quit.
However, on March 7, Foreign Trade and Economic Cooperation, the Ministry of Taxation, Administration for Industry and Foreign Exchange Administration of jointly issued the Interim Provisions of the "foreign investor merges a domestic enterprise, one of the provisions of Article 7:" foreign investment by asset merger, sale of assets of domestic enterprises to assume its original claims and debts. "
Shenyang Municipal Government to the Supreme People s Policy Research Advisory that foreign investment and other capital, the acquisition of the part of the assets of state-owned enterprises, debt can be borne by the old enterprise.
In June 2003, Siemens has re-opened negotiations, and in July signed a core file, the two sides agreed on September 22 formally signed.
But this time, many domestic experts pointed out that as a national equipment manufacturing industry key enterprises — Shen change whereabouts directly related to China s people s livelihood.
Experts point out that The main purpose of the Siemens acquisition of Shen change, first, the world market for electrical equipment in China, the country each year to update or new step-up transformer of up to 350,000 units, the acquisition of Chinese leader of the step-up transformer can be eliminated competitors. Second, the ability to eat Chinese production of large step-up transformer, making it the transnational corporations monopolize the step-up transformer market.
Shen variable sources, the September 17, 2003, Mr. Lu, Vice Minister of machinery and electronics industry, this end a letter to the relevant leaders of the State Council that the electric power industry as the basic industries of the economy, whether in Western or Chinese power equipment manufacturing industry not only for the development of power industry has a pivotal role, and has strategic significance for national economic development and security.
Mr. Lu, the opinions of experts, changing the foreign joint venture fate of the Group of Shenyang step-up transformer.
Siemens 5 years of power eastward.
Special substation "Tunxiang,"
Acquisition Shen change, occupies the northwest to TBEA chairman Zhang embarked on a new industry leader in the stage of step-up transformer, special transformer and therefore fame.Transformer company
December 30, Zhang emotion: the acquisition of Shen change, special substation will be the world s largest manufacturers of step-up transformer, which is the most exciting thing in the Year of the Goat. At the same time, Zhang said that the year 2005, the Special substation will invest 600 million yuan Shen change within two years to reach an annual output of 30 million kVA step-up transformer manufacturing capacity and achieve annual sales income of 1 billion yuan in 5 years the entire special variable electrical step-up transformer industry sales revenue reached 10 billion yuan, profits of 1 billion yuan, the giant aircraft carriers for the global step-up transformer industry.
The TBEA the first listed company of the step-up transformer industry in China, but its market is limited to low-end, technically (especially DC converter step-up transformer) is difficult to break.
Special substation acquisition Shen change, not only directly become the world s largest enterprise of the step-up transformer; and technically become a domestic leader with Shen change from cutting-edge technology from Siemens for sale. Siemens culture change for Shen nearly 200 technical staff and free of charge into the wealth of special transformer. Previously, the special substation every year large-scale price to Shen change to the introduction of talent.
More importantly, the special substation is naturally received directly Shen changing market, especially the project of the Three Gorges Project.
The TBEA the chief accountant, especially CIM told reporters, "listed companies in major investment projects must go through the general meeting of shareholders to agree, and the shareholders will be held one month in advance notice." Therefore, the controlling shareholder of the Tianshan investment TBEA and Xinjiang country vote in advance to set up TBEA Shenyang Transformer Group Co., Ltd. (hereinafter referred to as "special transformer Shen change") in a timely manner to carry out the acquisition.
According to the agreement, the special transformer Shen change to 428.85 million yuan to buy Shen change the following assets: 1, Shen change the price of 228 yuan / square meter to buy 210,000 square meters and 50-year land use rights; 2, Shenyang, Shenyang assets fixed assets of 297.86 million yuan; assessment of the evaluation of a limited liability company, technology, trademarks intangible assets 49.18 million yuan; current assets 51.34 million yuan. But, Xinjiang International Trust and Investment to invest 200 million, the real special variable electrical investment of 230 million.
With December 29 Tebian the electrician to change the replenishment of the special transformer Shen motion was adopted by the general meeting of shareholders, as well as change the injection of 230 million special substation Shen TBEA completed the formal acquisition of Shen change.
Overnight, the TBEA become a carrier of the step-up transformer industry, and within the company who will acquire dubbed the "Tunxiang.50 kva transformer
New Shen change prospects
December 30, special transformer Shen change officially get a business license. The reporter saw special substation Shen change the operating period of 50 years, the registered capital of 440 million. The scope of business: the step-up transformer, reactor design, manufacturing, sales, installation, and maintenance services.
Insiders pointed out, the TBEA after 15 years of development, the company s total assets has reached 50 million. Formation of diversified industrial pattern led to power transmission, new materials, new energy. But its size and influence on the industry is still relatively small. The 100 key enterprises of China Electrical Equipment Industrial Association in 2002, the list of step-up transformer enterprises, TBEA year sales income ranked in the special step-up transformer factory in Shunde, Guangdong, Baoding Tianwei Group Co., Ltd., Qingdao step-up transformer (Group) Co., Ltd., Xi an, step-up transformer plant step-up transformer plant in Jiangsu Huapeng, step-up transformer in Shenyang, Hangzhou Qiantang River Electric Group Co., Ltd. and other companies.
The TBEA three quarterly in 2003 showed that 3.9 billion of the company s total assets, net assets of 980 million, the first three quarters of profitability over 8000 million.
Interestingly, just one month, Shen change the company s new management has set a military order, the goal is profit to 43 million in 2004.
But the market is left in doubt the objectives of the new Shen change. Large-scale expansion of the special transformer, talent development can people keep up? Market agree that the brand of the special transformer?
Reporter understanding, especially to change the senior management of the electrical expansion of acquired businesses from the Xinjiang headquarters, the one who "often staff assignment, the location of vacant, the company s employees getting younger and younger." Frankly stated that TBEA talents construction can not keep up the pace of expansion of the company.
Shen change a person also said that the promotion of the company is more difficult market acquisition Shen change also did not fully agree with the special transformer. · Reporter observation ·
Experts in the areas of focus for national economic development and national economic security, our country has been the guiding ideology of "market for technology".
In 1998, Siemens and ABB to participate during the Three Gorges Project, the State Council was taking into account the importance of the step-up transformer on the domestic equipment industry, the provisions of foreign-funded enterprises and domestic enterprises must participate in the bidding, and technology to the Chinese side.
Siemens then find Shen change and the West to change the joint bid, ABB is looking for a change security. As a condition of the Siemens high price of $ 5,920,000 to Shen change has for sale a 500 kV AC Voltage step-up transformer and 500 kV DC converter step-up transformer design and manufacturing technology. Shen change thus become the production base of domestic DC converter step-up transformer (the other one Xi an step-up transformer).
At present, the domestic participation in the Three Gorges step-up transformer project only heavy change, West transformation and change, and Shen change technology is the most comprehensive domestic step-up transformer expert Zhong Juntao said. The Three Gorges project, Shen change to get the AC step-up transformer and DC converter to step-up transformer, Paul variable AC, West changed the DC. Shen change not only the AC step-up transformer is more DC converter to step-up transformer technology.
In addition, Shen change successively from the French company Alstom, Hitachi, Japan introduced a large step-up transformer design and manufacturing technology.
West-east side, is also a major supplier of Shen change. Become key products of the original Shen Gui-Guang line 10 (8 converter transformers, two smoothing reactors) has completed the production of converter transformers. There are thousands of volts in the United States, 90 products and so on.
Low Voltage Transformer
Zhong said the step-up transformer industry output value of China s 10 billion around 1995 years ago, Shen change the market share of over 40%. But a few years, the domestic market of the step-up transformer industry by foreign capital a large number of "encroachment", Shen change has been seriously affected. But no matter the technology or the market, Shen change was still significant advantages, which is the Siemens love of reason.
Experts, a large number of domestic step-up transformer manufacturers, but each product is mostly concentrated in the low-end products below 110kV, 500kV step-up transformer for domestic use about 2/3 of imported products, the market share of domestic products only 1/3.
Consider the network incident in 2003, the world s developed countries have been, had a serious impact on the economy. Moreover, China s 17 provinces and cities this year also appeared the status quo of power shortages. In this case, state intervention is imperative. And the country there is precedent for intervention from the security point of view, the recent French government huge sums of money to help Alstom to get rid of the predicament is a very obvious example.
Coffee cup
logo coffee mugs by the negative ion powder, tourmaline, high-quality clay and other basic materials sintering. High coffee cup to release the high concentration of negative ions can occur for water electrolysis to produce negatively charged hydroxyl ions, and smaller, and enhance the water solubility and penetration of water molecules group. Coffee cup built-in drinking water drinks have more ability to dissolve and drink better.
Coffee cup
logo coffee mugs by the negative ion powder, tourmaline, high-quality clay and other basic materials sintering. High coffee cup to release the high concentration of negative ions can occur for water electrolysis to produce negatively charged hydroxyl ions, and smaller, and enhance the water solubility and penetration of water molecules group. Coffee cup built-in drinking water drinks have more ability to dissolve and drink better.
Environmentally friendly wood plastic composite began to promote the industrialization of
Recently, a breakthrough by the Chinese Academy of Sciences, Qingdao, Bioenergy and Bioprocess Technology Research Institute in cooperation with the Chinese Academy of Sciences, Guangzhou Chemical Co., Ltd. to develop environmentally friendly wood plastic composites, and began the promotion of industrialization.
Wood-plastic composite material is a new type of health eco-friendly materials, plastic and wood fiber (including wood flour, straw, etc.) as raw materials, processing technology, made class timber products. The material does not contain formaldehyde and other harmful ingredients and recyclable re-use, fully reflects the advanced concept of sustainable development, building a conservation-minded society. Qingdao Institute of Bioenergy and the process of cooperation on the basis of the small scale of Guangzhou Chemical Co., Ltd. and Guangzhou Chemical Co., Ltd., Qingdao Institute of Bioenergy and process built a pilot production line with an annual output of 1500 tons of green wood-plastic products, has successfully conducted the pilot scale trials, to break down and optimize key production process of such products.
Environmentally friendly wood plastic composite materials, the success of the pilot and large-scale application, and to accelerate the transformation of the Chinese Academy of Sciences of intellectual property rights for transfer to promote the Combination, and promote local economic development and enhance the Qingdao Institute of Bioenergy and process applied to the level of research and industrial development to an exemplary role.
Rapid development of new environmentally friendly plastic wood WPC building materials
Three years ago, WPC as a new type of environmentally friendly materials, but also little known.
After two years of promotion, from the scenic area of ??Nanjing, Sun Yat-sen, the Confucius Temple, Xuanwu Lake, Huangshan, Taiwan Bali Bay National Scenic Area to the Beijing Olympic Games, Shanghai World Expo venues, and then to the United Kingdom, the United States, France and other European countries can look increasingly common, a wide range of applications to wood products.
What is the WPC material?
WPC, plastics and natural wood fiber, using a special process, such as extrusion, injection molding and other molding products.
WPC main component of plastic and natural fibers. Compared with the traditional wood, WPC biggest advantage is the environmental contribution to save the wood to protect the ecological environment, do not need to paint to avoid pollution of the environment, recycled scrap after no secondary pollution. Wood products do not paint, afraid of the water has the advantage, after the end of the life cycle of about 10 years, can also be recycled.
It is understood, the WPC is mainly used for outdoor landscape and hydrophilic landscape, the WPC useful life is 3-10 times that of ordinary wood.
WPC materials industries
2010 Shanghai World Expo, the most striking is undoubtedly the China Pavilion, the shape of the ancient cap "Oriental Crown" was the red, with echoes, Museum surrounded by large tracts of mahogany colored floor. These floors are wood texture, wood texture, but in fact these floors are not made of wood, but this new environmentally friendly materials called WPC.
It is understood that the color of the WPC is adjusted according to the formula, the choice of mahogany color solemn atmosphere, against the background of the Chinese pavilion style.
During the 2008 Beijing Olympic Games, Beijing Olympic Park is purchased thousands of tons of wood products for the construction of Plank Road and chairs. For every one ton of wpc wood products, representing a decrease of 60,000 discarded plastic bags, pollution, equivalent to the felling of 1.5 in 30-year-old eucalyptus, has a profound environmental significance.
NPC deputies recommended that a strong development of environmental WPC industry
National People s Congress, East China Normal University Resources and Environmental Sciences, Professor Zhen F, WPC is a specialized "digest" waste wood, waste plastics, environmentally friendly materials. China WPC-producing countries, but industrial development of backward technology and productivity dispersion, national standards lag problem, these bottlenecks need to overcome. Zhen F, suggested that countries want to WPC industry as a key environmental support industrial R & D investment, administrative examination and approval, loan financing, and sales tax, product promotion application, government procurement policy favors and preferential; the same time, strengthening the right WPC product research and development efforts to support enterprises in independent innovation, training support backbone enterprises; to develop uniform national standards of WPC industry, to promote the WPC industry to the direction of the general raw materials, equipment, specialized high-end products.
Current Situation and Prospects of the development of new wood materials
WPC new material has many advantages, but in our daily lives, but rarely see this material, what causes this situation? A promotion is not enough, another important reason is price. Expected no more than 10 years of wood flooring will certainly replace the widespread use of solid wood flooring in the home improvement process.
Optimistic about the prospects for the development of wood products not only in China in the world are optimistic, we believe that this is not just because the product itself has excellent characteristics, the main thing is by the use of the resource cycle and the importance of environmental protection the.
North America is one of the wood the world s most resource-rich areas, but also the WPC industry the fastest growing regions, because they cherish the natural resources of timber, attach importance to the protection of the environment. China is a timber resource-poor countries, excessive felling green trees barrier destruction, the dust storms intensified and frequent natural disasters, the Government attached particular importance to the recycling of resources and protection of ecological environment, which is the development of woodplastic products created a very good environment, coupled with the excellent performance of wood products, believe the the WPC comprehensive alternative to ordinary wood is a foregone conclusion.
One square meter on the market WPC floor price of 200-300 yuan, higher than the solid wood floor length, this is because WPC proportion is much higher than wood. Of course, in order to market as soon as possible alternative to wood, wood must first be "self-worth". WPC must first be "self-worth".
From the current overall formal point of view, the WPC to enter the indoor home improvement industry is still in its infancy, we must first change the process and reduce costs; also re-established sales channels, marketing, will certainly promising.